Paper container



A. MOORE.

PAPER CONTAINER.

APPLICATION FILED AUG-19, 1920.

Jill? flrfinqfon Moor BY Qua/m r &

INVENTOR v ATTORNEYS I Patented Nov. 21, 1922.

"ran STATES PATENT OFFIQE,

ARLINGTON MOORE, OF BOSTON, MASSACHUSETTS, ASSIGNOR, TO CLARKE-MOORE CORPOITION, OF WILMINGTON,'DELAWARE, A CORPORATION OF DELAWARE.

. rarnn con'ramnn.

Application filed August 19, 1920. Serial No. 404,558

To all whom it may concern:

Be it known that I, ARLINGTON MOORE, a

citizen of the United States, residing at Boston, in the county of Suffolk, State of Mae'- sachusetts, have invented certain new anduseful Improvements in Paper Containers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to paper containers, that is, to containers made of any suitablefibrous stock whether paper or resembling .paper, and, particularly to' the closure therefor. The container may be in the form of a can with a cylindrical side wall, or in any suitable polygonal or curved form, wound or formed in any suitable Way. The paper stock may be single or multiple ply, with or without incorporating a binder, and the container may be coated with paraffin or the like, and ma have a paper coverin or advertising label: w

he closure of the present invention provides an effective seal suitable for either the top or bottom of the container, or both, and

comprises a'ca'p having a wall which isfolded together with the side wall of the container, preferably inwardly, to form a bead; The folds of, the bead may have opposed 'arched portions to resist relative movement'between adjacent folds and consequentdisplacement. Preferably the bead is angular in cross. section and the arched portions -arranged I diagonally thereof, the portions on the diagonal line at one side of the center of the bead being'opposed to those on the diagonalline at the other side there:

pre ed and practically solidified, t e 'calp, as wellas'the folds of the bead are rigidly set and the container is tight] sealed against the ingress-of moisture an foreign of, in which case the opposed arched 'por- Of- Where alsothe bead ishighl lcom tions of the folds act also to grip the end of the wall of the cap.

The invention further .comprehends as another of its parts a paper container having a side wall'and a closure therefor comprisng a cap having a wall folded, preferably inwardly, together with the side wall to form a head, the bead having a cap-retaining groove, preferably in the inner wall thereof, and a binding cap in the groove to preclude the displacement of the folds of the bead; and, if the bead be highly compressed and practically solidified so as to be rigidly set, the folds are so maintained by the binding cap. The head may be formed in contact with, and the cap-retaining groove therein adjacent, the closure cap, and a portion of the folds may be arched toward the I groove to stiffen the resistance of the latter to displacement. Where the head is angular, portions of the folds thereof are diagonally arched toward the groove, preferably from theouter edge of the bead diagonally toward the groove in the lower inner corner thereof; and the arched portions on the diagonal line at one side of the center of the bead may form the groove and oppose like portions on the diagonal line at the other side of the center to resist the displacement of so ,oa p, th'us forming a double cap and serving not only to reenforce the closure cap against longitudinal displacement under greater pressure, but also the container against def ormation. The closure cap may have an '90 openingtherein which may be sealed by the bindingcap. And so also'the' sidewall: of the container may have a recess andthe wall ofthe cap a portion in the bead complemental to the recess for interlocking the walls, in which oonstruotion'the binding cap' serves alsoto compress the folds of the head in the recess, and in addition insures the continuance of the gripping" effect of the latter. The portion of the wall ofthe cap which is formed, in folding, complemental to the recess in. said side wall m y 50 11 1 a recess, preferably an inner recess, in which the folds of-the bead may be anchored. In this construction the binding cap also acts to retain the folds of' the bead in the recem in which they are anchored.

In the accompanying drawing illustrating the invention in application, as an example, to a cylindrical container of single ply stock, the figure is a view of the contalner partly in section and partly in elevation.

The container has a cylindrical side wall 1 of suitable thickness and surface finish and top and bottom closures 2 and 3 respectively. i

The closure comprises a cap 4 having a wall 5 which is folded together with the side wall 1 of the container to forma bead .6. The side wall 1 has a recem at 7 in the bead in which a portion of the wall 5 of the cap 4 is fitted forming an 'inner recess 8, and .the folds of the bead are anchored therein. The side wall 1 is provided with a hem 9 which is convoluted to form the core 10- of the bead, and the end of the wall of the cap is secured at 11 between the core and folded portions thereof- The bead has a cap-retaining groove 12 adjacent the closure cap 4 formed by diagonally archin the folds as at 12, 13, and 14, the remain or of the folds bein wise diagonally but oppositely arched as at 16,17, and 18. The cap 4 may have an opening as at 19, and the groove a binding cap 20 therein superimposed upon the 010- .sure cap 4 and serving either to seal the opening 19, as shown in the top closure, or

to form a double cap as in the bottom closure.

The inner wall 21 of the head is tapered inwardly to guide the binding cap as it"is forced into position.

-Portions of the closure of the container, particularly the bead 6, are subjected in forming to a pressure of about 4000 to '6000 pounds per square inch, under which the parts are rigid y set to gage dimensions and become practically solidified.

The closure constructed as above described and the container wall are thoroughly reenforced for strength to withstand unusual pressures in handling or in shipment tending to break down the seal or to deform the container, for not only are the folds of the bead gripped in the recess 7 and anchored in the inner recess 8, but the are retained in'these recesses by the binding cap 20 securely held in the groove 12 which is stiffened against displacement by the diagonally arched folds directed toward it. Furthermore, where the groove 12 is formed of diagonally arched portionsof the folds of the bead at one side of its center, the latter being opposed by similarly arched portions at the other side of the center, the folds are secured against displacement and the end likeof the wall of'the' cap may be gripped at least at two diagonal points to further secure it in place inthe bead.

Having thus described my invention, What I claim is: 1 1. In a paper container, a side wa1l,-; and a closure therefor comprising a cap having a wall folded together with said side wall .to' form a bead, and a hem on said side taining groove and portions of the folds thereof arched toward said groove to stiffen the resistance of the latter to displacement, and a bin-ding cap in said groove.

3. In a paper container, a side wall, and a closure therefor comprising a cap having a Wall folded inwardly together with said side wall to-form an angular head, said head having a cap-retaining groove and portions of its folds diagonally arched toward said groove, and a binding cap in said groove.

. 4. In a paper container, a side wall, and a closure therefor comprising a cap havin a wall folded inwardly together with said side wall to form an angular bead in contact with said cap, said head havinga capretaining groove at the lower inner corner thereof and adjacent the closure cap and a portion of its folds arched from an outer edge diagonally toward said groove, and a binding cap in said groove and superimposed upon the closure cap to form a double.

of thebead forming a cap-retaining groove and being opposed by like arched portions on the diagonal line at theother side of the center, to resist the displacement of the folds, and to stiifen the cove against displacement; and a bin ing cap in said groove.

6. In a paper-container, a side wall, and a closure therefor comprising a cap having an opening and a wall folded inwardly tother with said side wall to form a bead in contact with said closure cap, said head having a cap-retaig'n groove adjacent said cap and a portion of t e folds thereof arched toward said groove to stiffen the resistance of the latter, and a binding cap in said groove and superimposed upon said closure cap to seal the opening therein.

7. In a paper container, a side wall having a recess, and a closure for the container cdmprising a cap having an opening therein, and a wall folded inwardly together with said side wall to form a bead in contact with said closure cap and a portion complemental to said recess in said head for 10 interlockingsaid wall; said bead having a cap-retaining groove 1nthe inner surface thereof and portions of its folds arched toward said groove, and a binding cap in said groove for retaining the folds of the;bead 15 

